NEW! Publishing DialogWe just released our new Resource Publishing Dialog! Create, publish, choose topics and categories, done!
NEW! Topic MapsMath Topic Maps for thousands of free and interactive classroom resources:
NEW! Scientific Calculator AppsWe released a new app for Android and iOS - the Scientific Calculator with Exam Mode. Try it!
GeoGebra Global Gathering 23rd-24th July 2019Save the Date - GeoGebra Global Gathering 23rd-24th July 2019
- Time for a little Puzzle: The two shapes shown in the applet have the same area. But where does the black square come from?
- Explore a visual proof for the Pythagorean Theorem with this activity.